CB amplifier - Input resistance level for source loading

Q.  What should be the level of input resistance to allow the occurrence of source loading in common base amplifier configuration?
- Published on 23 Sep 15

a. Low
b. High
c. Moderate
d. Stable

ANSWER: Low

Related Content

 

    Discussion

  • Satyawati   -Posted on 29 Sep 15
    As per the configuration of CB amplifier, it is obvious that its input resistance is very low whereas its output resistance is extremely high.

    However, the lower value of input resistance allows the provision of source loading in common base amplifier circuit.

    Thus, there is no current amplification due to unity current gain. These all reasons ultimately contribute to high level of voltage gain.

➨ Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)
▲